Gathering Other Station Data
There's lot's of nice data out there...let's use it!
receiver networks: IGS, UNAVCO, CORS
format: RINEX
UNAVCO
UNAVCO Polar Project
GNET
ANET
- Various networks with standardized equipment and maintenance
- 1-second rate
- GPS + GLO
OFFLINE
CORS
- Very dense U.S. network
- 1, 5, 15, 30-second sampling rates
- Mainly GPS + GLO
IGS
- Collection of monitoring stations from other institutions
- Some new data here, but need to be careful about data overlap
- Unsure of rate of old data -- seems to vary
- Has the most multi-GNSS: GPS+GLO+GAL+BDS+QZSS
Getting Station Coordinates
UNAVCO:
ftp://data-out.unavco.org/pub/products/position/gage_gps.igs08.txt
CORS:
ftp://cors.ngs.noaa.gov/cors/coord/coord_08/igs08_geo.comp.txt
IGS:
- I copied a table I found online into a text file located here:
/media/share/brianbw/igs-stations.txt
Getting Station Data
UNAVCO:
ftp://geodesy.noaa.gov/cors/rinex/<yyyy>/<doy>/<station_id>/<*.o>
CORS:
ftp://data-out.unavco.org/pub/rinex/obs/
<yyyy>/<doy>/<station_id>/<*.o>
IGS:
ftp://cddis.gsfc.nasa.gov/pub/gps/data/daily/<yyyy>/<doy>/<yy>o/<station_id><doy>.<yy>o.Z
Getting Station Data
class FTPDownloader
class DataFileManager
- Takes path expression (e.g. /<yyyy>/<doy> for path of 4-digit year followed by day-of-year)
- Automatically substitutes correct date and station parameters in path expression
- Mirrors FTP site locally (e.g. on the work server)
- Uses DataFileManager
- Automatically downloads and extracts data from FTP site
- Will check if data already downloaded
Getting Station Data
FTPDownloader
DataFileManager
-
See GITLAB: brianbw/data-utils
- I use these utilities for **all** FTP data
- SP3 files
- DCB files
- ANTEX files
- IONEX files
- Automates workflow
- don't have to worry about
- "do I still have that data downloaded?"
- "I need to change to different date..."
- don't have to worry about